LONDON (Reuters) – Individuals who’ve had COVID-19 are extremely unlikely to contract it once more for at the very least six months after their first an infection, based on a British research of healthcare employees on the frontline of the battle in opposition to the coronavirus pandemic.
The findings ought to provide some reassurance for the greater than 51 million folks worldwide who’ve been contaminated with the pandemic illness, researchers on the College of Oxford mentioned.
“That is actually excellent news, as a result of we will be assured that, at the very least within the quick time period, most individuals who get COVID-19 will not get it once more,” mentioned David Eyre, a professor at Oxford’s Nuffield Division of Inhabitants Well being, who co-led the research.
Remoted instances of re-infection with COVID-19, the illness attributable to the SARS-CoV-2 virus, had raised considerations that immunity could be short-lived and that recovered sufferers could swiftly fall sick once more.
However the outcomes of this research, carried out in a cohort of UK healthcare employees – who’re amongst these at highest threat of contracting COVID-19 – recommend instances of reinfection are more likely to stay extraordinarily uncommon.
“Being contaminated with COVID-19 does provide safety in opposition to re-infection for most individuals for at the very least six months,” Eyre mentioned. “We discovered no new symptomatic infections in any of the individuals who had examined constructive for antibodies.”
The research, a part of a serious workers testing programme, coated a 30-week interval between April and November 2020. Its outcomes haven’t peer-reviewed by different scientists however have been printed earlier than evaluation on the MedRxiv web site.
Throughout the research, 89 of 11,052 workers with out antibodies developed a brand new an infection with signs, whereas not one of the 1,246 workers with antibodies developed a symptomatic an infection.
Employees with antibodies have been additionally much less more likely to take a look at constructive for COVID-19 with out signs, the researchers mentioned, with 76 with out antibodies testing constructive, in comparison with solely three with antibodies. These three have been all nicely and didn’t develop COVID-19 signs, they added.
“We’ll proceed to comply with this cohort of workers fastidiously to see how lengthy safety lasts and whether or not earlier an infection impacts the severity of an infection if folks do get contaminated once more,” Eyre mentioned.
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Cite this: COVID-19 Reinfection Unlikely for at Least 6 Months, Examine Finds – Medscape – Nov 20, 2020.